MySQL 5.7 Release Notes
void mysql_debug(const char *debug)
Description
Does a DBUG_PUSH with the given string.
mysql_debug() uses the Fred Fish
debug library. To use this function, you must compile the client
library to support debugging. See
Section 26.5.3, “The DBUG Package”.
Return Values
None.
Errors
None.
Example
The call shown here causes the client library to generate a
trace file in /tmp/client.trace on the
client machine:
mysql_debug("d:t:O,/tmp/client.trace");